Sökning: "valley asymmetry"
Hittade 3 uppsatser innehållade orden valley asymmetry.
1. Mechanisms controlling valley asymmetry development at Abisko, northern Sweden and Sani Pass, southern Africa
Magister-uppsats, Institutionen för geovetenskaperSammanfattning : Abstract The main goal of this study is to examine mechanisms controlling valley asymmetry development at two locations with distinctly differing environmental parameters and to develop a model for the two locations. As a secondary aim the knowledge gained from the main goal is thought to help understand the very uncertain glacial past of the high Drakensberg as it can be compared to the much accepted glacial history of Abisko. LÄS MER
2. Within-tree fluctuating asymmetry of mountain birch in subarctic Sweden
Master-uppsats, SLU/Southern Swedish Forest Research CentreSammanfattning : The mountain birch ecosystem forms the northern treeline in subarctic Europe. Since the treeline isextremely sensitive to temperature, stress in mountain birch can be used as an indicator of stress onthe ecosystem as a whole, and in predictions of how climate change factors will influence thesubalpine-tundra ecotone and treeline dynamics. LÄS MER
3. Morphometry and Environment of Asymmetric Non-sorted Stripes in the Abisko mountains, Northern Sweden
Master-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : Because the mechanisms that lie behind the formation and preservation of asymmetric non-sorted stripes have not yet been established, and their particular shape has been given little attention by authors before, this study aims at giving a better understanding of the landforms and the environmental conditions under which they exist, with emphasis on under what circumstances the asymmetry develops. For this purpose, the roles of vegetation and snow were key concerns as well as the wind regime in relation to the vegetation, snow and morphology. LÄS MER